Automatic wagon-brake



(No Model.) 2 sheets-sheet 1.

F. W. MOLDENHAUER.

AUTOMATIC WAGON BRAKE. l y No. 307,567. Patented Nov. 4, 1884.

(No Model.) 2 sheets-sheen 2.

F. W. MOLDBNHAUER.

AUTOMATIC WAGUN BRAKE. No. 307,567. Patented Nov. 4, 1884.

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AAUTOMATIIC WAGON-BRAKE.

SPECIPICATIGN forming part of Letters Patent No.. 307,567, dated November 4, 1884. Application nien m515, 1884. (No model.)

To a/ZZ whom, t may concern:

Be it known that LFRIEDRICH WV. MOLDEN* BAUER, of Ashippun, in the county of Dodge, and in the State of Visconsin, have invented certain new and useful Improvements in Automatic Wagon-Brakes; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to improvements in automatic brakes for wagons, and will be fully described hereinafter.

In the drawings, Figure l is a side elevation of a wagon fitted with a braking device embodying my invention. Fig. 2 is a vertical longitudinal section of the rear part of a wagon, showing the construction of the working parts of my improved brake and of its lock. Fig. 3 is a vertical cross-section of the same on line m w of Fig. 2, and Fig. 4 is a detail in vertical longitudinal section on line 3/ y of Fi 3.

JgA A indicate the wagon-frame, and B the box of the same.

C C are metallic standards,rnade in any suitable form, but preferably as shown in the drawings. The lower ends of these standards are firmly bolted onto the ends of the upper crossbeams, a a, of the wagon-frame,their upper ends extending on each side of the wagon-box, as shown. About the center of each of said standards C is formed a bearing, c, and in these bearings are journaled the trunnions d d of the cranked` rod or bar D, which is thus adapted to oscilla-te in a segmental plane limited by the length of the cranks d of the supporting-bar D.

Fastenedin the under side of the wagon-box, opposite each of the cross-beams a a, are the bars b b, a sufficient space being left between them wherein the cranked bar is received. The box B is `in this manner hung in the standards C C of thewagontrain, so as to be` adapted'to oscillate back or forth, according to the variations of the road-surface. As the brakes, however, are to be operated only when the vehicle moves downhill, I have provided against the back oscillation of the box by fastening in the under side of the said box and on each side of the center of the same the angle-iron plates b bf, the outer face of the vertical portions of said plates abutting against in the under side of the box B. The brakes are, moreover, rigidly connected by means of the cross-beam E. The vertical portions e e' of the bar E are flattened, and are perforated F is a link, one end of which is hinged in any suitable manner, as at f, on theiinner face of the rear cross-beam, a', while its opposite end is bifurcated at f to receive the said vertical portions e e. Perforations f2 f2 in the said bifurcated end are made to coincide with either of the perforations in the vertical portions e e of the bar or lever E, and to receive the body ofthe fulcrum-bolt f 3, whereon the brakes may be adj usted as desired. As the box B moves ahead on the trunnions of the supporting-bar D, the brake lever or rod E moves with it; but as the vertical portions of this lever are attached through the link F to the train-frame, these are swung on the fulcrum-bolt f3 in a manner to bring the brakes in close contact with the periphery of the wheels of said train, the pressure exerted by the brakes being determined by the angle of inclination of the road and the Weight of the load.

In order to prevent the wagon-box B from moving forward and bringing the brakes in action on a level whenever the Wheels meetwith some obstruction, I provide a suitable stop, consisting, preferably, of a spring-p1ate, G, fastened in the under side of the wagon-box, in the central longitudinal line of the same. A hook, g, is formed in the free end of said plate, and this hook, in 'the normal position of the spring, will coincide with and fall within a clamp, g', suitably fastened on the inner face of the rear cross-beam, a, of the trainframe, the horizontal or lower portion of said lhook abutting against the inner face of the said clamp. A lever, G', bearing inthe staples g2 g2, suitably fastened in the under side of the said wagon-box B, is provided with an arm, g3, projecting in line with and toward the spring portion of the stop-plate G, against the lower face of which it rests. This arm g3 serves to raise the hooked end g against ICO the spring of the plate and clear out ofthe clamp g', as the lever Gf is swung on itsbearings, by means ofthe hand-lever H, fastened at h in the side of the box B, in reach of the driver. The hand-lever is connected through a link-rod, h', to the cranked-end of the lever G', and a segmental clamp, h2, suitably fasti ened in the said side of the box, embraces the lever H slightly above its fulcrurn, and is provided on its inner face and close to its front end with a notch, h3, into which the said lever H is moved by the driver when the brakes have to be applied. j

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isf 1. In a vehicle` in combination with a wheeltrain frame having swinging supports for the wagon-box, a brake-gear hinged underneath the said box and connected to the train-frame through an adjustable fulerum-rod, whereby as the vehicle is running on a downward ineline the motion of the box on its swinging supports willforce the brake-shoes against the periphery of the wheels, substantially as and for the purpose set forth.

2. In a vehicle,in combination with a wheeltrain frame having swinging supports for the prevent the rearward motion of the box on its swinging supports, substantially as set forth.

3. In a vehicle, in combination with the wheel-train frame having swinging supports for the wagon-box, and a brake-gear hinged underneath the box and connected tothe wheeltrain frame through an adjustable fulcrumrod, the spring-plate G, provided with hook g, clamp g', lever G, having arm g3, staples g2 g2, hand-lever H, link-rod h, and segmental clamp h2, provided with notch h3, substantially as shown and described, and for the purpose set forth.

In testimony that I claim the foregoing I vhave hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Visconsin, in the presence of two witnesses.

FRIEDRICH W. MOLDENIIAUER. v

Witnesses:

S. SSTOUT, H. J. FoRsYTHE. 

